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  1. 1

    Brand New Extension; Very Cold Floor!! Due to No compacted Hardcore??

    I have now cranked up the thermostat in the hall by another 3 degrees and this brought the temperature up by 3 deg on day one (from 17 to 20 deg); however day 2 and it was only up by 2 deg. In the hallway and everywhere else the temp. rise remained constant. I gather from this, the extra heat in...
  2. 1

    Brand New Extension; Very Cold Floor!! Due to No compacted Hardcore??

    thanks for your reply tony1851, I couldn't really say whether it did or not (other than asking the builder). From your question, am I correct to assume this is Building Control requirement?? Also, I had a curtain fitter round yesterday who suggested maybe getting an "Energy Assessor"; do you...
  3. 1

    Brand New Extension; Very Cold Floor!! Due to No compacted Hardcore??

    In general, what I found is when I put my hand up against the wall in the extn, immediately above the skirting, the wall is colder than the wall higher above it. That is about a foot above the skirting is quite cold. In the old building this is not the case whereby there is no temperature...
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    Brand New Extension; Very Cold Floor!! Due to No compacted Hardcore??

    Thanks tony1851, yes I did see insulation going in the 95mm cavity (brown sheets of insulation) and the roof has 300mm. The rad in the bigger room is 6900btu (18ft x 10ft); the smaller room its 4000btu (13 x 10ft). However there may be a balancing issue and my only measure is that they get...
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    Brand New Extension; Very Cold Floor!! Due to No compacted Hardcore??

    Is there any way of finding out the root cause of this problem through a surveyor or structural engineer?? I am just wondering if I might be on the wrong track here and it might that the cold room is due to something else. Thanks.
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    Brand New Extension; Very Cold Floor!! Due to No compacted Hardcore??

    garyo thanks for your reply; yes I did see all the Ballytherm go in also the concrete being poured (although this was done manually rather than straight off the back of the lorry). Cheers, Jon.
  7. 1

    Brand New Extension; Very Cold Floor!! Due to No compacted Hardcore??

    I did use a dehumidifier for 3 wks which did collect about 5 pints of water overnight to start with and then by the end of 3rd week only about half a pint overnight.
  8. 1

    Brand New Extension; Very Cold Floor!! Due to No compacted Hardcore??

    So, lack of Hardcore wouldnt be the reason for the cold floor then?? And is a 5deg C difference to be expected until the floor fully dries out?? Cheers, Jon.
  9. 1

    Brand New Extension; Very Cold Floor!! Due to No compacted Hardcore??

    Thakns tony1851, I hadn't thought of that. I very much hope its the case. If so how long before temperature in the extension matches the old house (built 23 yrs ago). Cheers, Jon.
  10. 1

    Brand New Extension; Very Cold Floor!! Due to No compacted Hardcore??

    Thanks dazlight, unfortunately I don't know the answer to screed thickness. Carpet went in last week. Screed was done end October so about 10 weeks after. Still 5 deg C difference is a fair bit I would have thought. Thanks, Jon.
  11. 1

    Brand New Extension; Very Cold Floor!! Due to No compacted Hardcore??

    Hi all, Just had a new 2 room extension on ground floor only (end terrace). This runs the whole length on the side of the house. It is 30 sq metre. It has a pitch roof. As the build went along I felt the builder was trying to save pennies. Having just had the carpet fitted now, I see how cold...
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